On Wed, Sep 2, 2009 at 9:53 AM, Rupert Wood<me@xxxxxxxxx> wrote: > Peng Yu wrote: > >> I think that we have been talking about different configure files. I >> found the following two configure files. You were talking about the >> first one. But I were talking about the second one. > > You should be calling the top-level configure file, yes. However the top-level configure calls gcc/configure (amongst others) and will pass on its command line options, so --enable-languages is a valid switch to use at the top level. See the documentation for a fuller list: > > http://gcc.gnu.org/install/configure.html ./configure --enable-languages='c java' --prefix=mydir make -j6 But I get the following error after I run the second command ('make -j6'). Can somebody let me what the problem is? ===================== config.status: executing src commands configure: error: `CXX' has changed since the previous run: configure: former value: /home/pengy/download/linux/gcc-4.3.4/host-x86_64-unknown-linux-gnu/gcc/g++ -B/home/pengy/download/linux/gcc-4.3.4/host-x86_64-unknown-linux-gnu/gcc/ -nostdinc++ -L/home/pengy/download/linux/gcc-4.3.4/x86_64-unknown-linux-gnu/libstdc++-v3/src -L/home/pengy/download/linux/gcc-4.3.4/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -B/home/pengy/utility/linux//x86_64-unknown-linux-gnu/bin/ -B/home/pengy/utility/linux//x86_64-unknown-linux-gnu/lib/ -isystem /home/pengy/utility/linux//x86_64-unknown-linux-gnu/include -isystem /home/pengy/utility/linux//x86_64-unknown-linux-gnu/sys-include configure: current value: /home/pengy/download/linux/gcc-4.3.4/host-x86_64-unknown-linux-gnu/gcc/g++ -B/home/pengy/download/linux/gcc-4.3.4/host-x86_64-unknown-linux-gnu/gcc/ -nostdinc++ -nostdinc++ -I/home/pengy/download/linux/gcc-4.3.4/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu -I/home/pengy/download/linux/gcc-4.3.4/x86_64-unknown-linux-gnu/libstdc++-v3/include -I/home/pengy/download/linux/gcc-4.3.4/libstdc++-v3/libsupc++ -I/home/pengy/download/linux/gcc-4.3.4/libstdc++-v3/include/backward -I/home/pengy/download/linux/gcc-4.3.4/libstdc++-v3/testsuite/util -L/home/pengy/download/linux/gcc-4.3.4/x86_64-unknown-linux-gnu/libstdc++-v3/src -L/home/pengy/download/linux/gcc-4.3.4/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -B/home/pengy/utility/linux//x86_64-unknown-linux-gnu/bin/ -B/home/pengy/utility/linux//x86_64-unknown-linux-gnu/lib/ -isystem /home/pengy/utility/linux//x86_64-unknown-linux-gnu/include -isystem /home/pengy/utility/linux//x86_64-unknown-linux-gnu/sys-include configure: error: changes in the environment can compromise the build configure: error: run `make distclean' and/or `rm ./config.cache' and start over
